net: core: let skb_partial_csum_set() set transport header
For untrusted packets with partial checksum, we need to set the transport header for precise packet length estimation. We can just let skb_pratial_csum_set() to do this to avoid extra call to skb_flow_dissect() and simplify the caller. Cc: Eric Dumazet <edumazet@google.com> Signed-off-by: Jason Wang <jasowang@redhat.com> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -3370,6 +3370,7 @@ bool skb_partial_csum_set(struct sk_buff *skb, u16 start, u16 off)
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skb->ip_summed = CHECKSUM_PARTIAL;
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skb->csum_start = skb_headroom(skb) + start;
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skb->csum_offset = off;
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skb_set_transport_header(skb, start);
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return true;
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}
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EXPORT_SYMBOL_GPL(skb_partial_csum_set);
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